If the tiles aren t flat you need to level the floor using leveling compound.
How to lay wood floors over tile.
If installing over an appropriate wood surface sand the wood to make it smoother and remember that the installation will work better over a subfloor at least 1 1 8 inches thick.
In this case another subfloor would have to be installed over the tile with a minimum thickness of 5 8 exceptions may include dealing with some of the more popular solid 5 16 products.
Is it possible to lay hardwood over an existing tile floor yes you can lay a wood floor over tile if the existing floor is in good shape and without cracks.
You should install an underlayment before laying the floor but you may need to install transition strips.
If the tile is being installed in a bathroom consider applying an isolation membrane over your wood subfloor to further protect against expansion and contraction.
I would suggest 3 8 thick prefinished engineered hardwood flooring.
Donna asks we are thinking about replacing our tile floor in the kitchen.
Solid floors are normally nailed to wood subfloors.
You can lay laminate over tile as long as the tile is in good condition which means no broken or loose pieces.
In order to install a solid floor one would need a proper subfloor.